Alpha Ltd. company is a large retailer with more than 16000 employees, having outlets at different locations in India. The company is offering computers, its peripheral products and its services. Their business growth is

CS Professional · Information Technology and Systems Audit · PYQS · December 2020
Alpha Ltd. company is a large retailer with more than 16000 employees, having outlets at different locations in India. The company is offering computers, its peripheral products and its services. Their business growth is badly affected due to competitive environment. It has also come to the notice of the management that there is a significant dissatisfaction of customers in the matter of servicing. Alpha Limited expressed a need for high capacity, high bandwidth network to meet their evolving business requirements and to serve their customers in better ways. Company also decided to subscribe for cloud computing services and also desired to adopt Mobile commence for conducting financial and promotional activities. As an IT expert, management of the company has sought your advice on the following issues: What advice would you give ? (d) What is cloud computing? What are the different categories of services offered by public cloud provider to the company ?

Answer & Explanation:

Cloud Computing: Cloud Computing is a general term for anything that involves delivering hosted services over the Internet. It is therefore is a term used to describe a new class of network based computing that takes place over the Internet. Cloud computing in other words is the delivery of different services through the Internet. These resources include tools and applications like data storage, servers, databases, networking, and software. Cloud services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). Infrastructure-as-a-Service: It includes Amazon Web Services that provides the customer with virtual server instances and storage, as well as Application Program Interfaces (APIs) that allow the customer to start, stop, access and configure their virtual servers and storage. This model allows a company to pay for only as-much capacity as needed, and bring more services online as soon as required because this pay-for-what-you-use model resembles the way electricity, fuel and water are consumed, it's sometimes referred to as utility computing. Platform-as-a-service: It is defined as a set of software development tools hosted on the provider's infrastructure. Developers create applications on the provider's platform over the Internet. PaaS providers may use APIs, website portals or gateway software installed on the customer's computers. Force.com and Google App are examples of PaaS. In the software-as-a-service: Under this cloud model, the vendor supplies the hardware infrastructure, the software product and interacts with the user through a front-end portal. SaaS is a very broad market. Services can be anything from Web-based email to inventory control and database processing. Because the service provider hosts both the application and the data, the end user is free to use the service from anywhere.

Topics: Cloud Computing

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